Abstract: The present invention is a solventless one liquid type cyanate ester-epoxy composition comprising: (A) a multifunctional cyanate ester, or mixture thereof, of formula (1), wherein an average cyanate group number is 2.5 or more; (B) a multifunctional liquid epoxy resin, or mixture thereof, of formula (2), wherein an average epoxy group number is 2.5 or more, and (C) an amine latent curing agent. [ Average ? ? cyanate ? ? group ? ? number ] = ? i = 1 n ? ? ( Ai × Xi ) 100 Formula ? ? ( 1 ) Ai is a cyanate group number of component i, and Xi is a content ratio of component i (percent by mass) in the formula (1). [ Average ? ? epoxy ? ? group ? ? number ] = ? k = 1 n ? ? ( Bk × Yk ) 100 Formula ? ? ( 2 ) Bk is an epoxy group number of component k, and Yk is a content ratio of component k (percent by mass) in the formula (2).

Abstract: The present invention is a solventless one liquid type cyanate ester-epoxy composite resin composition comprised of (A) a multifunctional cyanate ester or a mixture thereof represented by the following formula (1), wherein an average cyanate group number is 2.5 or more, (B) a multifunctional liquid epoxy resin or a mixture thereof represented by the following formula (2), wherein an average epoxy group number is 2.5 or more and (C) an amine latent curing agent. [ Average ? ? cyanate ? ? group ? ? number ] = ? i = 1 n ? ? ( Ai × Xi ) 100 Formula ? ? ( 1 ) Ai is a cyanate group number of the component i, and Xi is a content ratio of the component i (percent by mass) in the formula (1). [ Average ? ? epoxy ? ? group ? ? number ] = ? k = 1 n ? ? ( Bk × Yk ) 100 Formula ? ? ( 2 ) Bk is an epoxy group number of the component k, and Yk is a content ratio of the component k (percent by mass) in the formula (2).

Abstract: The present invention is one liquid type cyanate-epoxy composite resin composition comprised of cyanate ester resin (A), epoxy resin (B), and potential curing agent (C), characterized in that the above potential curing agent is the potential curing agent containing phenol resin (b) as well as modified amine (a) which has one or more amino groups having an active hydrogen within a molecule obtained by reacting polyamine compound (a-1) with epoxy compound (a-2). The one liquid type cyanate-epoxy composite resin composition having storage stability, curing properties and high heat resistance properties at the same time can be realized by this composition.

Abstract: The present invention is one liquid type cyanate-epoxy composite resin composition comprised of cyanate ester resin (A), epoxy resin (B), and potential curing agent (C), characterized in that the above potential curing agent is the potential curing agent containing phenol resin (b) as well as modified amine (a) which has one or more amino groups having an active hydrogen within a molecule obtained by reacting polyamine compound (a-1) with epoxy compound (a-2). The one liquid type cyanate-epoxy composite resin composition having storage stability, curing properties and high heat resistance properties at the same time can be realized by this composition.